CVE-2025-52691

Known Exploited Vulnerability Entry External Catalog

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Entry Details

CVE-2025-52691

Confirmed

Yes

2026-01-26 00:00 UTC

Timestamps

2026-01-26

2026-01-26

Scope

KEV entry: SmarterTools SmarterMail Unrestricted Upload of File with Dangerous Type Vulnerability | Affected: SmarterTools / SmarterMail | Description: SmarterTools SmarterMail contains an unrestricted upload of file with dangerous type vulnerability that could allow an unauthenticated attacker to upload arbitrary files to any location on the mail server, potentially enabling remote code execution. | Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. | Due date: 2026-02-16 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://www.smartertools.com/smartermail/release-notes/current ; https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2025-124/ ; https://nvd.nist.gov/vuln/detail/CVE-2025-52691

References
  • {'id': 'CVE-2025-52691', 'url': 'https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2025-52691'}

c3476725-044f-468f-b424-c1af7d868e89

405284c2-e461-4670-8979-7fd2c9755a60

2026-02-02 13:24 UTC

2026-02-06 07:53 UTC

Evidence (1)
Type Source Signal Confidence Details GCVE Metadata
vendor_report cisa-kev successful_exploitation 0.80
View details 
{
  "cwes": [
    "CWE-434"
  ],
  "date_added": "2026-01-26",
  "due_date": "2026-02-16",
  "feed": "CISA Known Exploited Vulnerabilities Catalog",
  "knownRansomwareCampaignUse": "Unknown",
  "product": "SmarterMail",
  "vendorProject": "SmarterTools",
  "vulnerabilityName": "SmarterTools SmarterMail Unrestricted Upload of File with Dangerous Type Vulnerability"
}
 -
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